According to that article, thee only thing Williams said is that players maybe could have done a little better in August and September if the stadium was louder. He said "we tried" to build a level of fan energy and "we fell off". He goes on to say the Sox are looking for ways to increase the fan experience. There was no blaming the fans.

I took it that way. It won't be the first time this has happened and it's gotten oh so tiresome. There aren't as many Sox fans as Cub fans and you're not going to get guaranteed lemming like support from the ones you have. So just deal with that and do your best to build good teams.